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I received this in an email and thought it was interesting.
Penetrating Oils
Machinist's Workshop magazine recently published some information on
various penetrating oils that I found very interesting. Some of you
might appreciate this. The magazine reports they tested penetrates for
break out torque on rusted nuts.
They are below, as forwarded by an ex-student and professional
machinist. They arranged a subjective test of all the popular
penetrates with the control being the torque required to remove the
nut from a "scientifically rusted" environment.
*Penetrating oils ........... Average torque load to loosen in foot-pounds
No Oil used ................... 516 ft-lbs
WD-40 ....................... ... 238 ft-lbs
PB Blaster ..................... 214 ft-lbs
Liquid Wrench ................127 ft-lbs
Kano Kroil ..................... 106 ft-lbs
ATF*-Acetone mix.............53 ft-lbs
The ATF-Acetone mix is a "home brew" mix of 50 - 50 automatic
transmission fluid and acetone. Note this "home brew" released bolts
better than any commercial product in this one particular test.
Our local machinist group mixed up a batch and we all now use it with
equally good results.
Note also that "Liquid Wrench" is almost as good as "Kroil" for about
20% of the price.
Steve from Godwin-Singer says that ATF-Acetone mix is best, but you
can also use ATF and lacquer thinner in a 50-50 mix. *ATF=Automatic
Transmission Fluid
Penetrating Oils
Machinist's Workshop magazine recently published some information on
various penetrating oils that I found very interesting. Some of you
might appreciate this. The magazine reports they tested penetrates for
break out torque on rusted nuts.
They are below, as forwarded by an ex-student and professional
machinist. They arranged a subjective test of all the popular
penetrates with the control being the torque required to remove the
nut from a "scientifically rusted" environment.
*Penetrating oils ........... Average torque load to loosen in foot-pounds
No Oil used ................... 516 ft-lbs
WD-40 ....................... ... 238 ft-lbs
PB Blaster ..................... 214 ft-lbs
Liquid Wrench ................127 ft-lbs
Kano Kroil ..................... 106 ft-lbs
ATF*-Acetone mix.............53 ft-lbs
The ATF-Acetone mix is a "home brew" mix of 50 - 50 automatic
transmission fluid and acetone. Note this "home brew" released bolts
better than any commercial product in this one particular test.
Our local machinist group mixed up a batch and we all now use it with
equally good results.
Note also that "Liquid Wrench" is almost as good as "Kroil" for about
20% of the price.
Steve from Godwin-Singer says that ATF-Acetone mix is best, but you
can also use ATF and lacquer thinner in a 50-50 mix. *ATF=Automatic
Transmission Fluid